<?php
/**
 * @author Nguyễn Sơn Tùng <sontung.x305@gmail.com> <YM :terminator_nst>
 * @version 1.0
 * @copyright fteam.vn
 * Date: 25/04/2012
 * Time: 22:59
 */
class UserLoginForm extends CFormModel
{
    public $username;
    public $password;
    public $rememberMe;

    private $_identity;

    /**
     * Declares the validation rules.
     * The rules state that username and password are required,
     * and password needs to be authenticated.
     */
    public function rules()
    {
        return array(
            // username and password are required
            array('username, password', 'required','message'=>t('Enter {attribute}')),
            // rememberMe needs to be a boolean
            array('rememberMe', 'boolean'),
            // password needs to be authenticated
            array('password', 'authenticate'),
        );
    }

    /**
     * Declares attribute labels.
     */
    public function attributeLabels()
    {
        return array(
            'username'=>t('UserName / Email','userLoginForm'),
            'password'=>t('Password','userLoginForm'),
            'rememberMe'=>t('Remember Me','userLoginForm'),
        );
    }


    /**
     * Authenticates the password.
     * This is the 'authenticate' validator as declared in rules().
     */
    public function authenticate($attribute,$params)
    {
        if(!$this->hasErrors())
        {
            $this->_identity=new FUserIdentity($this->username,$this->password);
            if($this->_identity->authenticate() > 0){
                switch ($this->_identity->errorCode) {
                    case USER_DEACTIVATE :
                        $this->addError('username',t('User is not Active.','UserLoginForm'));
                        break;
                    case USER_BANNED :
                        $this->addError('username',t('User is banned.','UserLoginForm'));
                        break;
                    case FUserIdentity::ERROR_USERNAME_INVALID :
                        $this->addError('username',t('User Does not Exist.','UserLoginForm'));
                        break;
                    case FUserIdentity::ERROR_PASSWORD_INVALID :
                        $this->addError('password',t('Incorrect password.','UserLoginForm'));
                        break;
                    default :
                        $this->addError('password',t('Unknown Error.','UserLoginForm'));
                        break;
                }

            }
        }
    }

    /**
     * Logs in the user using the given username and password in the model.
     * @return boolean whether login is successful
     */
    public function login()
    {
        if($this->_identity===null)
        {
            $this->_identity=new FUserIdentity($this->username,$this->password);
            $this->_identity->authenticate();
        }
        if($this->_identity->errorCode===FUserIdentity::ERROR_NONE)
        {
            $duration=$this->rememberMe ? 3600*24*7 : 0; // 30 days
            Yii::app()->user->login($this->_identity,$duration);
            return true;
        }
        else
            return false;
    }
}